Aftermath Of Fire Is Erosion Nightmare

With grass and no-till residue burned off, topsoil has been blown away.

Published on: Mar 6, 2012

When farmers in Stanton County finally got a wildfire that burned 60 square miles under control, they thought they the worst was over. In reality, it had just begun.

"First the air was full of ash and then full of dirt," says farmer Steve Arnold, who lives near Johnson City. "We didn't get rain, the grass blew out and with the residue all burned, the fields have just blown and blown."

Arnold says he can't even imagine the amount of topsoil that is long gone, but his fields are now exposed sand dunes.

SOIL PROBES: Arnold labels each soil probe with the location it was taken from and the date and stores them in his pickup truck. He will have them analyzed to learn their content.
SOIL PROBES: Arnold labels each soil probe with the location it was taken from and the date and stores them in his pickup truck. He will have them analyzed to learn their content.

"I'm back to where we were after the 1930s," he said. "Eleven years of residue gone in five hours."

Please provide the answer to the following question:

 =